"amount of export" is a perfectly correct and usable phrase in written English.
You can use it in any context where you are discussing the size or quantity of something being exported. For example, "The amount of export from the country in the last quarter was drastically higher than anticipated."
Over the years the amount of export goods from Slovakia to Ukraine has decreased and in 2012 some 586,933 tonnes of goods and 17,163 wagons were transported.
In total, 0.18% of intermediate demand is needed to achieve US$10 million agriculture export acceleration, while the same amount of export increase in agro-products would consume additional 0.42% of intermediate input.
Based on GEM 2011 report (Kelley, Singer, & Herrington 2012), business performance is measured by three main factors including growth (current and expected growth level of employees), amount of export and, innovation which shows the availability of new technologies, new products and their competitors (Bosma & Levie 2010b).
Even if this is the case, the Chinese electronics, steel, and shipbuilding industries are likely to recover their international competitiveness over Korean companies and to increase the amount of export.
The fact that, after 2000, the amount of export subsidies paid by OECD countries to their farmers represented 64percentt of its base level (1986-1990) is considered by the government of Côte dIvoire as unfair competition that disrupts international trade.
____ The amount of exports to China from all the countries of South America combined exceeded $10 billion.
The volume of exports increased 1.3% in the June quarter, but the actual dollar amount of exports fell 0.6%.
Data has been normalized to place exports to the rest of the world on the same scale as the lower amount of exports to Latin America.
Forest type had no significant effect on estimated amount of exported C despite fairly large differences in projected end uses (solid wood products, land-fills, bioenergy).
According to 65% of the planners, the introduction of the NY-PI resulted in an increase in both acres per farm and amount of exported manure.
This can boost the economy in various ways, even if the physical amount of exports does not increase as rapidly as the economy.
